C123132112322333121111113121111331333133313231333231323233221223311221   >>    C12313211232233312111111312111133133313331323133323132323322122331122   <<    C123132112322333121111113121111331333133313231333231323233221223311223   >>      C123132112322333121111113121111331333133313231333231323233221223311222   >>